Diff of /contrib/plugins/grade/report/visual/flare_visualization.swf

CONTRIB-497 *Added new visualization, Grade Distribution *Fixed some minor bugs *Made abstract visualization class for creating visualizations by making classes witch extend it. *Made visual_settings.php witch takes a visualization class and truns it in to XML witch flex can read in. *Made flex visualization application read in XML formated settings as well as tab formated data from moodle and combind them to make a custom visualization. *Made flex visualization application read and use langue strings from moodle. *Added printer firendly tab TODO: *Add more visualizations *Refactor some of the flex/actionscript code *More douctenation *More UI functions for the flex application